Verrucaria fuscella

Crustose-aerolated, saxicolous, on calcareous rocks, covering small areas of 5 mm, usually parasitizing Aspicilia sp. ó Verrucaria nigrescens.
Note: perithecia completely inmersed in the areoles:
Spores simples, ellipsoidal and colourless, 13-17 x 5,5-7 micras
Lithology: limestone
Altitude: 140 m
Municipality: Almería